22021012049 has 2 divisors, whose sum is σ = 22021012050. Its totient is φ = 22021012048.

The previous prime is 22021011983. The next prime is 22021012109. The reversal of 22021012049 is 94021012022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22005645649 + 15366400 = 148343^2 + 3920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22021012049 is a prime.

It is not a weakly prime, because it can be changed into another prime (22021017049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010506024 + 11010506025.

It is an arithmetic number, because the mean of its divisors is an integer number (11010506025).

Almost surely, 2^22021012049 is an apocalyptic number.

It is an amenable number.

22021012049 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021012049 is an equidigital number, since it uses as much as digits as its factorization.

22021012049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 22021012049 in words is "twenty-two billion, twenty-one million, twelve thousand, forty-nine".